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Design and Implementation of a Digital Controller for a Vibration Isolation and Vernier Pointing SystemThis paper discusses the recommissioning of the Annular Suspension and Pointing System (ASPS), originally developed in the mid 1970's for pointing and vibration isolation of space experiments. The hardware was developed for NASA Langley Research Center by Sperry Flight Systems (now Honeywell Satellite Systems), was delivered to NASA in 1983. Recently, the hardware was loaned to Old Dominion University (ODU). The ASPS includes coarse gimbal assemblies and a Vernier Pointing Assembly (VPA) that utilize magnetic suspension to provide noncontacting vibration isolation and vernier pointing of the payload. The VPA is the main focus of this research. At ODU, the system has been modified such that it can now be operated in a l-g environment without a gravity offload. Suspension of the annular iron rotor in five degrees-of-freedom has been achieved with the use of modern switching power amplifiers and a digital controller implemented on a 486-class PC.
Document ID
19960052918
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Neff, Daniel J. (Old Dominion Univ. Norfolk, VA United States)
Britcher, Colin P. (Old Dominion Univ. Norfolk, VA United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1996
Publication Information
Publication: Third International Symposium on Magnetic Suspension Technology
Volume: Part 1
Subject Category
Mechanical Engineering
Accession Number
96N35911
Funding Number(s)
CONTRACT_GRANT: NAG1-1056
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19960052904Collected WorksThird International Symposium on Magnetic Suspension Technology
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